"""
Copyright (c) 2022 Huawei Technologies Co.,Ltd.

openGauss is licensed under Mulan PSL v2.
You can use this software according to the terms and conditions of the Mulan PSL v2.
You may obtain a copy of Mulan PSL v2 at:

          http://license.coscl.org.cn/MulanPSL2

THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
See the Mulan PSL v2 for more details.
"""
"""
Case Type   : 故障&可靠性测试
Case Name   : 主机执行备份指令，-h指定备节点，修改备节点时区与主节点不一致
Create At   : 2020/11/27
@zou_jialiang0505328126
Description :
    1.修改备节点时区与主节点时区不一致
    2.主机执行备份指令，-h指定备节点
    3.使用备份文件恢复备机
    4.重启集群，检查数据库状态
Expect      :
    1.修改时区成功
    2.主机备份成功
    3.主机恢复成功
    4.重启集群成功，状态正常
History     :
"""

import os
import unittest
import sys
import time
from yat.test import macro
from yat.test import Node

sys.path.append(sys.path[0] + "/../")
from testcase.utils.CommonSH import *
from testcase.utils.Common import Common
from testcase.utils.Constant import Constant
from testcase.utils.Logger import Logger

## 默认  /etc/localtime -> ../usr/share/zoneinfo/Asia/Shanghai
New_York_Local = '/usr/share/zoneinfo/America/New_York'
LN_SF_CMD = 'ln -sf {zone} /etc/localtime'


class Basebackup(unittest.TestCase):
    commonshpri = CommonSH('PrimaryDbUser')
    commonshsta = CommonSH('Standby1DbUser')
    nodes_tuple = ('PrimaryDbUser', 'Standby1DbUser', 'Standby2DbUser')

    @RestartDbCluster(*nodes_tuple)
    def setUp(self):
        self.log = Logger()
        self.log.info('------------Opengauss_Reliability_Tools_Backup_Case001.py 开始执行------------')
        self.dbPrimaryDbUser = Node(node='PrimaryDbUser')
        self.dbStandby1DbUser = Node(node='Standby1DbUser')
        self.dbStandby2DbUser = Node(node='Standby2DbUser')
        self.dbStandby1Root = Node(node='Standby1Root')
        self.dbPrimaryRootNode = Node(node='PrimaryRoot')
        self.Constant = Constant()
        self.common = Common('PrimaryRoot')
        self.backup_file = os.path.join(macro.DB_BACKUP_PATH, 'backup_dir')
        self.currentLocalZoneStr = self.dbStandby1Root.sh('ls -l /etc/localtime').result()
        self.standby1_hostname = self.dbStandby1Root.sh('hostname').result()
        self.primary_hostname = self.dbPrimaryRootNode.sh('hostname').result()

        self.log.info('-------------------创建备份路径-----------------------------------')
        shell_cmd = f'rm -rf {self.backup_file}; mkdir {self.backup_file};'
        self.log.info(shell_cmd)
        result = self.dbStandby1DbUser.sh(shell_cmd).result()
        self.log.info(result)

    def test_backup(self):
        self.log.info("-----------------------1.修改备节点时区与主节点时区不一致：成功-----------------------------")
        zonecmd = LN_SF_CMD.format(zone=New_York_Local)
        self.dbStandby1Root.sh(zonecmd)
        result = self.dbStandby1Root.sh('ls -l /etc/localtime').result()
        self.log.info(result)
        self.assertIn(New_York_Local, result)

        self.log.info('--------------------2.主机执行备份指令，-h指定备节点：成功----------------------------')
        result = self.commonshpri.execu_gs_backup('backup', self.standby1_hostname, self.backup_file, "--all")
        self.assertIn(self.Constant.BACKUP_BACKUP_SUCCESS_MSG, result)
        cmd = f'ls -l {self.backup_file} |grep "^-"|wc -l'
        self.log.info(cmd)
        result = self.dbStandby1DbUser.sh(cmd).result()
        self.log.info(result)
        self.assertLess(0, int(result))
        time.sleep(3)

        self.log.info('-------------------3.使用备份文件恢复备机:成功-----------------------------------')
        result = self.commonshpri.execu_gs_backup('restore', self.standby1_hostname, self.backup_file, "--all")
        self.assertIn(self.Constant.BACKUP_RESTORE_SUCCESS_MSG, result)

        self.log.info('-------------------4.重启集群，检查数据库状态------------------------')
        result = self.commonshpri.stopDbCluster()
        self.assertTrue(result)
        result = self.commonshpri.startDbCluster()
        self.assertTrue(result)
        result = self.commonshpri.getDbClusterStatus('status')
        self.assertTrue(result)

    def tearDown(self):
        self.log.info('-------------------------环境清理------------------------')
        self.log.info('--------------------------删除备份文件------------------')
        shell_cmd = f'rm -rf {self.backup_file}'
        self.log.info(shell_cmd)
        result = self.dbStandby1DbUser.sh(shell_cmd).result()
        self.log.info(result)

        self.log.info("-----------恢复系统时区--------------------")
        result = self.dbStandby1Root.sh('ls -l /etc/localtime').result()
        self.log.info(result)
        recoverTimezone = self.currentLocalZoneStr.split('->')[1]
        zonecmd = LN_SF_CMD.format(zone=recoverTimezone)
        self.log.info('recover: ' + zonecmd)
        self.dbStandby1Root.sh(zonecmd)
        result = self.dbStandby1Root.sh('ls -l /etc/localtime').result()
        self.log.info(result)
        self.log.info('----------Opengauss_Reliability_Tools_Backup_Case001.py 执行结束-----------------------')
